Improvement in time-table indicators



cated.

celicited rabes atout @llibre Letters Patent No. 108,548, dated October 18, 1870; antedated October 13, 1870.

IMPROVEMENT IN TIME-TABLE INDICATORS.

The Schedule referred to in these Letters Patent and making part of the same.

I, LEANDER WRIGHT, of Rochester, in the county of Monroe, and State of New York, have invented certain Improvements in Time and Stationdndicaters7 for Railway Engineers, of which the following is a specification.

My invention consists chiel'ly in the arrangement ot' a movable time-table within a case in connection witha station and distance-register, by which the times ofA arrival of any train at each station is indi- 1n the drawingf- Figure 1 is a front elevation ot` my' invention.

Figure 2 is a longitudinal section.

.lligure 3 is a transverse section.

Figure 4 represents a portion ot' the movable timetable D.

In the ordinary time-tables arranged for the use ol' engineers and other employees ot railways, a large mass of figures and letterpress is presented to the eye, and considerable time is necessary to trace out any single train and its times of arrival at the several way stations, besides giving rise to many errors, particularly it' the employee is changed otl frequently from one train to another. Moreover', the grease and dirt from the enginel and hand ot' the engineer soon obliterates the figures on such tables, so that new copies are constantly required.

p To obviat'e these difficulties I provide rollers, A and figs. land 3, havingbearings at each end in a case,

One end ot the gudgeons ofthe rollers projectsl some distance out oi' the case, and receives the knobs a, by which therollcrs are operated.

A time-table, D, such as is in common use on railways, having the times of arrival of each train 'at the several stations arranged in columns, substantially as shown in iig. 4, is glued, or otherwise secured, at its opposite ends, to rollers, each of the rollers A and B, and is then rolled on one or both of them, till it is drawn tightly across from one to the other, as shown` in iig. 3.

A' 'slotted opening, b, is made` lengthwise of the case C, the width of which is equal to, or a little more than the width of the columns of figures; and the rollers are so placed in the case that each column is successively exhibited through the slot as the rollers are revolved.

Outside of the case C I provide the lixed station and-distance-tables c and d, arranged one upon each side of the slot b.

The transverse divisions of the columns must of course register horizontally with those of the columns` of times upon D. Occasionally, however', in attaehing a new table to the rollers, a Adifficulty will be found in adj listing it correctly. I therefore attach a uut, e, to the .slide or plate upon which the tables c and el are formed, worked by a thumb-screw, j, outside of the case.

By this means the divisions upon each table are made to register by turning the screw f, so as to raise or lower the slide c (l.

To keep the paper D taut between the rollers, and also to prevent the latter from being moved by the jar of the engine, I provide a strap, g, embracing the rollers at one end, and tightened by a screw. 7:-, which works the sliding nut i.

The rear end of the nut is bent upward, as shown in fig. 2, and pressing against the strap g draws it together at a point between the rollers, as shown 1n -dotted lines in lig. 3, tightly clamping the rollers.`

In tig. 3 I have also shown asimpler form of brake, consisting of a shoe, y', resting upon the rollers, and forced against them by the screw 7l, which is tapped into the case C. v

A glass, I, is slipped into guides over the tables D It' desirable, the rollers A and B maybe connected by spur-gears, and opera-ted by one knob, attached either to the intermediate pinion orA to one ot' the rollers. 1

, Thisarrangement will always keep the table D taut across the rollers, and the frequent adjustment of the brake is made unnecessary.

For convenience in taking out and putting in new tables, D, the case C may be made in two parts and hinged together, as indicated in iig. 3.

A bracket lnay be attached to the ease U, by which the instrument can be secured to any convenient part ot' engine or oar.

rIhe slide c d may be easily removed and exchanged for one having a station list of any railway or division.

By the use of this invention the engineer is enabled to see at a glance the times of arrival at each station, and the distance traveled, and the timetable so incloscd is practically'indestructible.

What I. claim as my invention is- 1. In combination with the movable time-table D,

the fixed station and distance-tables c and d, when the latter are provided with a longitudinal adjustment,

substantially as set forth.

2. The brake g, bearing upon the rollers A and B, in combination with the clamp-screw h, arranged substantially as and for the purposes set forth.

LEANDER WRIGHT.

'Witnesses F. H. CLEMENT, T. J. SoU'rnwoa'rn. 

